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-rw-r--r--components/style/rule_tree/mod.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/components/style/rule_tree/mod.rs b/components/style/rule_tree/mod.rs
index e5b7e273885..2a137d7eb79 100644
--- a/components/style/rule_tree/mod.rs
+++ b/components/style/rule_tree/mod.rs
@@ -828,6 +828,8 @@ impl MallocSizeOf for RuleNode {
}
}
+// FIXME: use std::ptr::NonNull when Firefox requires Rust 1.25+
+
#[derive(Clone)]
struct WeakRuleNode {
p: NonZeroPtrMut<RuleNode>,